Disklavier

From what you say, I would expect it is a problem with a data buffer 
somewhere in the digital chain - either in your stereo system DAC or in 
the digital output added to your DCD1 (in order to help avoid jitter it 
is quite common to add a small buffer). Since the DAC in the DCD1 is 
within the device and doesn't have to travel over any external cables, 
there probably is no such buffer. I don't have a digital output on my 
DCD1 so I can't check this unfortunately.

Another option might be to build a MIDI delay circuit. MIDI is just a 
serial stream after all, so one could build a device that has a small 
ring / fifo type buffer with adjustable length (to adjust the delay).

James


Terry Fein wrote:
>
> I suspect that this is a question for the Yamaha engineers.  I have a 
> DCD1 that I use with a GranTouch.  I had the DCD1 modified to add a 
> digital output, which is connected to my stereo system.  When I use 
> Smart Pianosoft discs (which are "DCD1 Compatible"), I have two 
> problems.  First, each track starts and stops twice after a few 
> seconds, and then on the third try, plays all the way through the 
> song.  Second, once a track does start to play, the piano parts on the 
> floppy disc are not exactly synchronized with the CD.  The piano parts 
> always play a split second ahead of the CD.  
> I am wondering what the cause of these problems would be and if there 
> is any way to correct them.  In particular, is there a way to delay 
> the piano parts in order to synchronize them exactly with the CD?
>  
> The analog output on the DCD1 synchronizes perfectly.  However, the 
> sound quality of the CD's is much better through the digital output, 
> so it would be a shame not to be able to use it.
>  
> Thanks.
>  
> Terry Fein
> Key Biscayne, Florida
>